Modular, customizable footwear system with interchangeable components

ABSTRACT

A modular, customizable shoe assembly comprises a shoe shell including a shell attachment mechanism on a lower portion of the shoe shell and a pair of engagement members on an upper medial region of the shoe shell. The shoe assembly includes at least two different types of shoe soles which can be releasably connected alternatively to the shoe shell. Each of the shoe soles have a sole attachment mechanism adapted for releasable connection to the shell attachment mechanism. At least two different types of securement assemblies which can be releasably connected alternately to the shoe shell are provided and each of the securement assemblies are adapted for releasable connection to the pair of engagement members. The securement assemblies are arranged and designed to aid in securing the shoe to a wearer&#39;s foot. The shoe shell may also include a back heel mechanism on the rear of the shoe shell. A detachable loop piece having an upper loop is arranged and designed to detachably connect to the back heel mechanism.

BACKGROUND OF THE INVENTION 1. Field of the Invention

The present invention relates generally to footwear, and morespecifically, to customizable footwear having interchangeablecomponents.

2. Description of the Related Art

Footwear comes in many different types, styles, shapes, and colors.Frequently, the consumer wants to coordinate the footwear with the restof the clothing outfit. This can result in the consumer purchasingnumerous pairs of shoes to go along with the consumer's many outfits forvarious occasions.

Certain shoe features may be more desirable, more functional, or morecomfortable for certain activities and occasions. For example, there aretimes when it is desirable to quickly and easily remove and put on yourshoe while at other times it is desirable to have shoes that remainsnugly secured to your feet. Additionally or alternatively, there aretimes when you want your shoes to be lightweight and other times whenyou want your shoes to provide a soft, cushioned feel.

Oftentimes, one component of the footwear, for example the sole,receives greater wear than other components which results in the wornout footwear being discarded prematurely. This could be avoided if oneor more of the footwear components could be replaceable orinterchangeable to prolong the useful life of the footwear.

Additionally, the aesthetic look of footwear is affected by the type ofsecurement to the foot, for example, shoe laces, stretchable slip on,etc. Also, the aesthetic look of footwear is affected by straps or tagsattached to the upper portion of the footwear.

There have been several attempts at providing footwear with someinterchangeability and/or customization. A few of them are:

U.S. Pat. No. 10,143,261 titled “Shoe with Magnetic AttachmentMechanism” to Perkins et al.;

U.S. Pat. No. 10,60,936 titled “Shoe with Interchangeable Sole” toMulholland;

U.S. Pat. No. 7,984,569 titled “Modular Footwear System” to Chaney etal.; and

U.S. Pat. No. 6,345,454 titled “Shoe having a Removable Sole and Methodof Use” to Cotton.

It is desirable to have a modular, customizable footwear system havinginterchangeable components that provides the consumer with a pluralityof customizable options to alter or enhance the function, comfort and/oraesthetic look of the footwear. It is desirable to have a customizablefootwear system having interchangeable components that extends theuseful life of the footwear.

SUMMARY OF THE INVENTION

An embodiment of the present invention is a modular, customizablefootwear system having interchangeable components that provides theconsumer with a plurality of customizable options to alter or enhancethe function, comfort and/or aesthetic look of the footwear. Themodular, customizable footwear system with interchangeable componentsadditionally extends the useful life of the footwear.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

The invention is better understood by reading the detailed descriptionof embodiments which follows and by examining the accompanying drawings,in which:

FIG. 1 is a side perspective exploded view of the customizable footwearaccording to one embodiment of the present invention, showing a shoeshell and a sole having one type of attachment mechanism;

FIG. 1A is a bottom view of the shoe shell of FIG. 1;

FIG. 1B is a top view of the shoe sole of FIG. 1:

FIG. 1C is a side perspective view of the shoe shell and sole of FIG. 1being joined;

FIG. 1D is a bottom view of the shoe sole of FIG. 1;

FIG. 2 is a side perspective exploded view of the customizable footwearaccording to an embodiment of the present invention, showing the shoeshell and sole having another type of attachment mechanism;

FIG. 2A is a bottom view of the shoe shell of FIG. 2;

FIG. 2B is a top view of the shoe sole of FIG. 2;

FIG. 2C is a side perspective view of the shoe shell and sole of FIG. 2joined;

FIG. 2D is a bottom view of the shoe sole of FIG. 2;

FIG. 3 is a side perspective exploded view of the customizable footwearaccording to an embodiment of the present invention, showing a shoeshell and a sole having two types of attachment mechanisms;

FIG. 3A is a bottom view of the shoe shell of FIG. 3;

FIG. 3B is a top view of the shoe sole of FIG. 3;

FIG. 3C is a side perspective view of the shoe shell and sole of FIG. 3being joined;

FIG. 3D is a bottom view of the shoe sole of FIG. 3;

FIG. 4 is a side perspective exploded view of the customizable footwearaccording to an embodiment of the present invention, showing a shoeshell and a sole having another type of attachment mechanism;

FIG. 4A is a bottom view of the shoe shell of FIG. 4;

FIG. 4B is a top view of the shoe sole of FIG. 4;

FIG. 4C is a partial rear and side perspective view of the shoe shelland sole of FIG. 4 being joined;

FIG. 4D is a side perspective view of the shoe shell and sole of FIG. 4joined;

FIG. 4E is a bottom view of the shoe sole of FIG. 4 and showing thesliding blocks received within the shoe sole in dashed lines;

FIGS. 5, 6 and 7 are schematic views of an alternative embodiment of ashoe sole and a shell having a power source and a wiring arrangement;

FIGS. 8A, 8B, 8C, 8D, 8E, 8F, 8G and 8H show some representativealternate types of clips for securing the shoe shell to the sole;

FIG. 9 is a side perspective view of a representative shoe shell, theshell being shown without a shell attachment mechanism;

FIGS. 9A, 9B, 9C and 9D are side perspective views of somerepresentative alternate shapes and styles of shoe soles that can beattached to the shoe shell of FIG. 9, the shoe soles being shown withouta sole attachment mechanism;

FIG. 10 is a side perspective exploded view of the customizable footwearaccording to an embodiment of the present invention, showing a shoeshell and a sole having one type of sealing arrangement;

FIG. 10A is a front view of the embodiment of FIG. 10, showing thesealing arrangement with a portion of the sole removed;

FIG. 10B is an enlarged cutaway view of a portion of the sealingarrangement shown in FIG. 10A;

FIG. 11 is a side perspective exploded view of the customizable footwearaccording to an embodiment of the present invention, showing a shoeshell and a sole having a second type of sealing arrangement;

FIG. 11A is a front view of the embodiment of FIG. 11, showing thesealing arrangement with a portion of the sole removed;

FIG. 11B is an enlarged cutaway view of a portion of the sealingarrangement shown in FIG. 11A;

FIG. 12 is a partial side perspective view of an embodiment of thecustomizable footwear showing the shoe shell with a pair of engagementmembers;

FIG. 12A is a view showing the engagement member of FIG. 12 attached tothe shoe shell;

FIG. 12B is a perspective view of a lace-type of securement assembly;

FIG. 12C is a perspective view showing engagement of the securementassembly to the engagement member of FIG. 12;

FIG. 12D is a partial side perspective view of the customizable footwearshowing the shoe shell with the securement assembly of FIG. 12B;

FIG. 13A is a top view of an alternate embodiment of a lace-typesecurement assembly;

FIGS. 13B, 13C, 13D, 13E and 13F are top views of additional securementassemblies;

FIG. 14A is a partial side and rear perspective view of the customizablefootwear according to an embodiment showing a back heel mechanism;

FIG. 14B is a back view of a detachable loop piece;

FIG. 14C is an exploded view taken similar to FIG. 14A showing thedetachable loop piece being attached to the shoe shell;

FIG. 15A is a partial side and rear perspective view of the customizablefootwear according to another embodiment showing a back heel mechanism;

FIG. 15B is a back view of a detachable heel strap;

FIG. 15C is an exploded view taken similar to FIG. 15A showing thedetachable heel strap being attached to the shoe shell;

FIG. 16A is a partial side and rear perspective view of the customizablefootwear according to another embodiment showing a back heel mechanism;

FIG. 16B is an exploded view taken similar to FIG. 16A showing thedetachable loop piece being attached to the shoe shell;

FIGS. 17A and 17B are front and back views, respectively, of arepresentative strap according to an embodiment of the invention;

FIGS. 18A and 18B are side perspective views of the left and rightsides, respectively, of the customizable footwear according to anembodiment showing pairs of strap attachments; and

FIGS. 18C and 18D are views similar to FIGS. 18A and 18B, respectively,showing a front and rear strap connected to the pairs of strapattachments.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

It should be understood at the outset that although illustrativeimplementations of one or more embodiments are described below, thedisclosed assemblies, systems and methods may be implemented using anynumber of techniques, whether currently known or not yet in existence.The disclosure should in no way be limited to the illustrativeimplementations, drawings, and techniques described below, but may bemodified within the scope of the appended claims along with their fullscope of equivalents.

The following brief definition of terms shall apply throughout theapplication:

The phrases “in one embodiment,” “according to one embodiment,” and thelike generally mean that the particular feature, structure, orcharacteristic following the phrase may be included in at least oneembodiment of the present invention, and may be included in more thanone embodiment of the present invention (importantly, such phrases donot necessarily refer to the same embodiment;

If the specification describes something as “exemplary” or an “example,”it should be understood that refers to a non-exclusive example;

The terms “about” or “approximately” or the like, when used with anumber, may mean that specific number, or alternatively, a range inproximity to the specific number, as understood by persons of skill inthe field of the art;

If the specification states a component or feature “may,” “can,”“could,” “should,” “would,” “preferably,” “possibly,” “typically,”“optionally,” “for example,” “often,” or “might” (or other suchlanguage) be included or have a characteristic, that particularcomponent or feature is not required to be included or to have thecharacteristic. Such component or feature may be optionally included insome embodiment, or it may be excluded.

Embodiments of the invention will now be described with reference to thefigures, in which like numerals reflect like elements throughout. Theterminology used in the description presented herein is not intended tobe interpreted in any restrictive or limited way, simply because it isbeing utilized in conjunction with the detailed description of certainspecific embodiments of the invention. Furthermore, embodiments of theinvention may include several novel features, no single one of which issolely responsible for its desirable attributes or which is essential topracticing the invention described herein.

The present invention will now be described with reference to theseveral figures. One of the unique aspects of the invention is theinterchangeability of several parts, components or features of a shoe tochange the function, fit, feel and/or appearance of a shoe. Anotherunique aspect of the invention is to be able to combine two or more shoeshells with two or more soles as will be explained below.

Referring to FIG. 1, one embodiment of a customizable shoe 100 is shownhaving a shoe shell 30 positioned above a shoe sole 50. It is to beunderstood that the shoe shell 30 may be releasably connected, orremovably attached, to the sole 50 via a plurality of shell attachmentmechanisms, generally referred to as 40, and sole attachment mechanisms,generally referred to as 60, as further illustrated in FIGS. 1A, 1B, 1Cand 1D.

In one embodiment, a lower surface 32 of the shoe shell 30 will adjoinor contact an upper surface 52 of the sole 50. In one embodiment, theupper surface 52 includes a raised edge or lip 54, substantially aroundthe upper periphery of the shoe sole 50, as shown in FIG. 1. Thesubstantially peripheral raised edge 54 defines a slight recess in whichthe shoe shell 30 is received.

The shoe shell 30 will be attached or detached from the sole 50 throughthe use of the shell and sole attachment mechanisms 40 and 60,respectively. It is to be understood that various types of shell andsole attachment mechanisms 40 and 60, respectively, may be used.Referring to FIGS. 1 and 1A, the shell attachment mechanism 40 comprisesa plurality of clips 42 extending generally perpendicularly from thelower surface 32 of the shoe shell 30. Each clip 42 is a generallyinverted T-shape as viewed in FIG. 1 having a vertical stem 42S,preferably straight, and a transverse or cross-member 42C at an end ofthe stem 42S. Referring to FIG. 1A, preferably a notch 42N is formed inthe the cross-member 42C in axial alignment with the stem 42S. In oneembodiment, the clip 42 is allowed to partially rotate about the axis ofthe stem 42S. In one embodiment, the stem 42S may be mounted or attachedto a disk 42D embedded or attached to the shoe shell 30 as shown in FIG.1A. Preferably, the stem 42S is rotatably, or at least partiallyrotatably, connected to the disk 42D.

Referring to FIGS. 1 and 1B, the sole attachment mechanism 60 includes aplurality of slots 62 recessed in and below the upper surface 52 of theshoe sole 50. Preferably, the number of slots 62 is the same at thenumber of clips 42. The size of the slot 62 is at least as large as thecross-member 42C of the clip 42 to permit the cross-member 42C to extendinto and pass through the slot 62. A lower end of the slot 62 opens intoan enlarged cavity 62C between the upper surface 52 and a bottom surface56 of the shoe sole 50. Preferably, the cavity 62C is sized and arrangedto allow the clip 42 to rotate approximately 90 degrees. As shown inFIG. 1D, a hole 56H extends through the bottom surface 56 to the cavity62C. The hole 56H is preferably aligned with the axis of the stem 42S ofthe clip 42.

Referring to FIG. 1, the shoe shell 30 may be attached to the sole 50 byorienting the cross-members 42C of the clips 42 with the slots 62 of theshoe sole 50 with the shell 30 aligned above the sole 50. The shell 30and sole 50 are brought together and the cross-members 42C are insertedthrough the slots 62. A tool 70 may be inserted through the holes 56H toengage the notch 42N and partially rotate the clips 42, as for example aquarter turn, into a locked position to secure the shell 30 and sole 50together, preventing release of the shell 30 from the sole 50. Thereleasable attachment of the shoe shell 30 to the shoe sole 50 allowsfor interchangeability with other shoe shells 30 and shoe soles 50. Asingle shoe sole 50 could be interchanged with multiple shoe shells 30,and vice versa, to give a consumer several different styles and/orcolors of shoes. Additionally, as will be discussed in more detailbelow, several different shoe soles 50 may be interchanged with thesingle shoe shell 30 to provide different functions, fit and feel of thecustomizable footwear.

It is to be understood that in one embodiment, the sole attachmentmechanism 60 may comprise a unitary assembly including the slot 62 andcavity 62C, and may also include the hole 56H. In this instance, theunitary assembly may be embedded or attached to the shoe sole 50.

FIGS. 2, 2A, 2B, 2C and 2D illustrate another embodiment of attachingthe shoe shell 30 to the shoe sole 50 of the present invention.Preferably, one of the shell and sole attachment mechanisms 40, 60includes magnets and the corresponding attachment mechanism 40, 60includes a ferromagnetic material that is attracted to the magnet. Inuse, the attachment mechanism with the magnet magnetically attracts theother attachment mechanism so as to removably and releasably attach theshoe shell 30 to the shoe sole 50. As with the previous embodiment, theremovable attachment of the shoe shell 30 to the shoe sole 50 allows forinterchangeability with other shoe shells 30 and shoe soles 50. Themagnetic attachment allows the consumer to quickly interchange shoeshells 30 and soles 50 without the need for any special tool.Additionally, no holes are needed through the bottom of the sole 50 asevidenced by FIG. 2D.

FIGS. 3, 3A, 3B, 3C and 3D illustrate another embodiment of attachingthe shoe shell 30 to the shoe sole 50 of the present invention. Thisembodiment uses two types of attachment mechanisms. One type ofattachment mechanism 40 on the shoe shell 30 comprises a cantileveredpanel 44 having a first portion 44F extending downwardly from the lowersurface 32 of the shoe shell 30 that transitions to a substantiallyhorizontal panel portion 44H. The corresponding attachment mechanism 60on the shoe sole 50 is a substantially horizontal cavity 64 having aslotted opening 64S in the upper surface 52 of the sole 50. It is to beunderstood that the substantially horizontal cavity 64 is sized toreceive the substantially horizontal panel portion 44H and the slottedopening 64S is sized to receive the substantially horizontal panelportion 44H and the first portion 44F. Preferably, this type ofattachment mechanism is provided at a frontal portion 102 of thecustomizable shoe 100.

The second type of attachment mechanism 40 of the shoe shell 30 in thisembodiment comprises one or more clips 46 extending from the lowersurface 32 of the shoe shell 30. Each clip 46 has a stem 46S and across-shaped member 46C, similar in appearance to a plus (“+”) sign.Referring to FIG. 1A, preferably a notch 46N is formed in thecross-shaped member 46C in axial alignment with the stem 46S. In oneembodiment, the clip 46 is allowed to partially rotate about the axis ofthe stem 46S. In one embodiment, the stem 46S may be mounted or attachedto a disk (not shown) embedded or attached to the shoe shell 30 (asshown in FIG. 1A).

Referring to FIGS. 3 and 3B, the sole attachment mechanism 60 for theclips 46 includes a cross-shaped slot 66 recessed in and below the uppersurface 52 of the shoe sole 50. Preferably, the number of cross-shapedslots 66 is the same at the number of clips 46. The size of thecross-shaped slot 66 is at least as large as the cross-shaped member 46Cof the clip 46 to permit the cross-shaped member 46C to extend into andpass through the slot 66. A lower end of the slot 66 opens into anenlarged cavity (not shown) between the upper surface 52 and the bottomsurface 56 of the shoe sole 50. Preferably, the cavity is sized andarranged to allow the clip 46 to rotate approximately 45 degrees. Asshown in FIG. 3D, a hole 56H extends through the bottom surface 56 tothe cavity. The hole 56H is preferably aligned with the axis of the stem46S of the clip 46.

Referring to FIGS. 3 and 3C, the shoe shell 30 may be attached to thesole 50 by orienting the cross-shaped members 46C of the clips 46 withthe slots 66 of the shoe sole 50 with the shell 30 substantially alignedabove the sole 50. Preferably, the shoe shell 30 and sole 50 are angledtowards each other so that the substantially horizontal panel portion44H of the cantilevered panel 44 can be inserted into the slottedopening 64S in the upper surface 52 of the sole 50 and be received inthe horizontal cavity 64. Preferably, as the panel portion 44H is beingreceived in the horizontal cavity 64, the shell 30 and sole 50 arebrought together and the cross-shaped members 46C are inserted throughthe slots 66. A tool 70 (as shown in FIG. 1C) may be inserted throughthe holes 56H to engage the notch 46N and rotate the clips 46approximately 45 degrees into a locked position to secure the shell 30and sole 50 together, preventing release of the shell 30 from the sole50.

Yet another embodiment of attaching the shoe shell 30 to the shoe sole50 of the present invention is shown in FIGS. 4, 4A, 4B, 4C, 4D and 4E.FIG. 4A shows a bottom view of the shoe shell 30 and the shellattachment mechanism 40. FIG. 4B is a top view of the shoe sole 50 and aportion of the sole attachment mechanism 60.

Referring to FIG. 4, the shell attachment mechanism 40 comprises astructure 48, preferably attached to the lower surface 32 of the shoeshell 30. Preferably, the structure 48 comprises a housing 48H,preferably a hollow, rectangular housing having first and secondopenings 48F and 48S, respectively.

The sole attachment mechanism 60 of this embodiment comprises a solerecess 69 extending along the length of the sole 50. The sole recess 69is sized to receive the housing 48H. The sole recess 69 preferablyincludes first and second openings 69F and 69S in the periphery of thesole 50. The first and second openings 69F and 69S of the sole 50 arearranged and designed to align with the first and second openings 48Fand 48S of the structure 48. The sole attachment mechanism 60 alsocomprises two sliding blocks 67 and 68 as shown in FIGS. 4 and 4C,preferably made of the same material as the sole 50. The first slidingblock 67 preferably includes a head 67H and a body 67B and the secondsliding block 68 preferably includes a head 68H and a body 68B. Thefirst sliding block 67 also preferably includes a slot 67S extendingtransversely, or generally transversely, through the sliding block 67.The transverse slot 67S is sized and arranged to receive a portion ofthe second sliding block 68.

To assemble, the housing 48H is inserted into the sole recess 69 asshown in FIG. 4C. Upon insertion of the housing 48H into the sole recess69, the body 67B of the first sliding block 67 is slid through the solefirst opening 69F and into and through the housing first opening 48Funtil the head 67H of the first sliding block 67 is received in the solefirst opening 69F as shown in FIG. 4D. When the first sliding block 67is fully inserted, the transverse slot 67S is aligned with the housingsecond opening 48S and the sole second opening 69S. The body 68B of thesecond sliding block 68 is inserted through the sole second opening 69Sand through the housing second opening 48S and into the transverse slot67S of the first sliding block 67 until the head 68H contacts or abutsthe sole 50 as shown in FIG. 4E. This results in the shoe shell 30 beingsecurely attached to the sole 50.

It is to be understood that the previously described techniques ofattaching the shell 30 to the sole 50, while discussed separately, couldalso be used in combination with each other. In addition to theseoptions, a power source 110 may be connected to the shell attachmentmechanism 40 via wiring 112 as shown in FIGS. 5, 6 and 7. Electriccurrent from the power source 110 could power an actuation device 114,for example a motor, in a technique using clips to partially rotate theclips, as for example in FIG. 1, or activate magnets, as for example inFIG. 2. This allows the shell attachment mechanism 40 to connect to thesole attachment mechanism 60 electrically or electro-magnetically.Preferably, the power source 110 and actuation device 114 are mounted inthe shoe shell 30.

The shell attachment mechanism 40 can comprise any one or more of aplurality of designs, including, but not limited to, those shown inFIGS. 8A, 8B, 8C, 8D, 8E, 8F, 8G and 8H. All of these techniques aredesigned for the user to easily change the shoe's sole 50 out for adifferent one in order to modify the customizable shoe's aestheticsand/or functionality. For purposes of illustration, FIG. 9 shows arepresentative shoe shell 30 and FIGS. 9A, 9B, 9C and 9D showrepresentative alternate designs of soles 50, not intended to belimiting of the invention, that can be attached to the shoe shell 30. Itis to be understood that sole designs have many purposes. Certain soledesigns provide more cushion and comfort when standing on your feetduring long periods of time, some have bottom surfaces designed toprevent slipping, while some are designed to minimize the weight of theshoe. Allowing the consumer to customize his/her shoes for theactivities of the day is of great convenience, comfort and benefit!

In preferred embodiments of the present invention, the shoe shell 30 andthe sole 50 have a sealing arrangement to prevent debris or liquid fromentering the space between the two as shown in FIGS. 10, 10A, 10B, 11,11A and 11B. In addition to providing a better seal for the spacebetween the shoe shell 30 and sole 50, it also provides some additionalsupport for securing the sole 50 to the shoe shell 30. The shellattachment mechanism 40 and sole attachment mechanism 60 are not shownin FIGS. 10, 10A, 10B, 11, 11A and 11B for purposes of clarity; however,it is to be understood that they would be used in conjunction with thesealing arrangement. Preferably, the peripheral lip 54 of the sole 50includes a sole seal 122 and the shoe shell 30 includes a shell seal120. Preferably, the sole seal 122 and the shell seal 120 interact withor engage one another as the shell 30 is joined to the sole 50. Theshell seal 120 sits inside the sole seal 122 or vice versa, depending onwhich is a better securing mechanism. The seal may be of any of avariety of types or configurations and is not limited by the types shownin the figures.

As shown in FIGS. 10, 10A and 10B, the peripheral lip 54 of the sole 50includes a plurality of sole seals 122 comprising protruding elongaterectangular members that are received in a corresponding plurality ofshell seals 120 comprising elongate rectangular recesses. In FIGS. 11,11A and 11B, the shell seal 120 comprises a peripheral outwardlyextending pointed ridge and the sole seal 122 is a peripheral inwardlyextending recess for receiving the pointed ridge.

In one preferred embodiment of the invention, the customizable shoe 100allows for interchangeability on a top medial region 104 of the shoeshell 30, typically where shoelace holes are present adjacent the sidesof a tongue 34 of a lace-up shoe. In these embodiments, the shoe shell30 includes a pair of engagement members 72 flanking the tongue 34 asshown in FIG. 12. As shown in FIG. 12A, the engagement members 72 areconnected to the portions of the shoe shell 30, preferably permanentlyconnected by stitching, gluing or other means, where the shoelace holeswould normally be and are not connected to the tongue 34. Referring toFIGS. 12B, 12C and 12D, a securement assembly 70 is arranged anddesigned to cooperatively engage with the pair of engagement members 72.As shown in FIGS. 12A and 12C, the shown embodiment of the engagementmember 72 comprises a generally T-shaped member and optionally having astop plate 72P at one end of the engagement member 72. The securementassembly 70 shown in FIGS. 12B and 12C comprises a pair of generallychannel or C-shaped members 74 for slidably engaging the engagementmember 72 and securing the securement assembly 70 to shoe shell 30. Thestop plate 72P provides a stop for stopping further sliding of thechannel members 74. As shown in FIG. 12B, the securement assembly 70includes a plurality of openings 75 arranged to receive a shoelace 75Lfor lacing up the customized shoe 100. Preferably, the engagementmembers 72 and the securement assembly 70 are made of flexible materialsto allow some bending and flexing as would be expected during normalusage of shoes.

It is to be understood that the shape and configuration of theengagement members 72 and the securement assembly 70 may take on variousshapes and configurations. Additionally, a male portion of the connector(i.e., the T-shaped portion) could be on the securement assembly 70 andthe female portion (i.e., the C-shaped portion) on the engagement member72. An example of this is shown in FIG. 13A.

It is to be further understood that with this embodiment of theengagement members 72 and replaceable securement assembly 70,alternatives to a laced up shoe are available. Various differentsecurement assemblies 70 can be provided for the customizable shoe 100.FIGS. 13B, 13C, 13D, 13E and 13F are examples of some of the differentsecurement assemblies 70, although this is not intended to be exhaustiveof all of the possibilities. It is to be understood that in thesefigures (FIGS. 13B-13F) the securement assemblies 70 are shown having apair of channel members 74, although this is not intended to be limitingof the invention. FIG. 13B shows a plurality of elastic bands 76spanning between the channel members 74. FIG. 13C shows a zipper 77attached to fabric 77F, preferably stretchable fabric, which is attachedto the channel members 74. The zipper 74 can be partially unzipped toloosen the fit of the shoe on the wearer's foot. FIG. 13D shows a pairof crossed elastic bands 76 attached to the channel members 74. FIG. 13Eshows a wide elastic band 76 spanning between the channel members 74 andFIG. 13F shows the securement assembly 70 comprising only a pair ofchannel members 74.

With this design, the act of switching between the various types will bevery fast, therefore increasing the shoe's capacity to be customized tosuit the wearer's desired degree of tightness, looseness and/or comfortto the foot for the specific occasion.

Another area of customization in certain embodiments involves the rearof the customizable shoe 100. Some shoes utilize a loop on the back ofthe shoe to help users slip on the shoe over the heel of their foot. Inone embodiment of the present invention, a detachable loop piece 80having an upper loop 81 is provided. With reference to FIGS. 14A, 14Band 14C, the shoe shell 30 includes a back heel mechanism 82, whichcould be in the form of snap buttons. The detachable loop piece 80 hasmating snap buttons 82 on the back side of the detachable loop piece 80.With this embodiment, the user can attach the loop piece 80 to the rearof the shoe shell 30 as shown in FIG. 14C by engaging the snap buttons82 or leave the loop piece 80 off to change the function and aestheticof the customizable shoe 100.

Alternatively or additionally to the previous embodiment shown in FIGS.14A, 14B and 14C, the back heel mechanism 82 could comprise a pluralityof vertical rows of snap buttons 82. Although only two vertical rows areshown in FIG. 15A, it is to be understood from a review of a heel strap84 in FIG. 15B that the shoe shell 30 of FIG. 15A has three verticalrows of snap buttons 82 corresponding with the three vertical rows ofsnap buttons 82 on the heel strap 84. FIG. 15B shows the back side ofthe heel strap 84 with snap buttons 82 arranged to engage the snapbuttons 82 on the shoe shell 30 as shown in FIG. 15C, if desired by theuser. Alternatively, the user has the option to snap the detachable looppiece 80 of FIG. 14B on the center row of snap buttons 82, or the userhas the option not to attach anything to the snap buttons 82 on the shoeshell 30 as shown in FIG. 15A. In one embodiment, the heel strap 84includes a reflective color or material for high visibility, as forexample when walking at night.

Another embodiment of the present invention having a detachable looppiece 80 with an upper loop 81 is shown in FIGS. 16A and 16B. Withreference to FIGS. 16A and 16B, the shoe shell 30 includes a back heelmechanism 82, which could be in the form of a framework 85 defining apocket window 86 and an upper opening 87. The detachable loop piece 80has an elongate body 83 sized and shaped to be inserted through theupper opening 87 and be snugly received in the pocket window 86 as shownin FIG. 16B. When installed, the upper loop 81 is at or above the upperopening 87. Preferably, friction from the snug fit in the pocket window86 maintains the detachable loop piece in position when pulling on theloop to put on the shoe, but does not prevent removal from the back heelmechanism 82 when the feature is not wanted or desired. It is to beunderstood that additionally or alternatively, the feature of areflective color or material for high visibility, as for example whenwalking at night could be used on an elongate body 83 removably receivedwithin the pocket window 86 of the back heel mechanism 82.

In yet another embodiment, one or more removable straps 90 may beattached to the customizable shoe 100. These removable straps 90 mayenhance the visibility of the shoe 100 and thus the wearer, enhance theaesthetics of the shoe 100, and/or enhance the fit of the shoe 100 tothe wearer's foot. FIGS. 17A and 17B show the front and back of arepresentative removable strap 90. The strap 90 is preferably flexibleand may be made out of fabric, vinyl, leather or plastic. The strap 90preferably includes end connectors 92 for connecting to the shoe shell30. The shoe shell 30 includes strap attachments 94, preferably in theform of buttons, snap buttons or even hooks. Preferably, one pair ofstrap attachments 94 are attached to the left and right rear sideportions of the shoe shell 30 and a second pair of strap attachments 94are attached to the left and right front side portions of the shoe shell30 as shown in FIGS. 18A and 18B. A front strap 90F may be connected toone of the front strap attachments 94 and stretched across the upperfront portion of the shoe shell 30 and connected to the other frontstrap attachment 94 as shown in FIGS. 18C and 18D. Alternatively oradditionally, a rear strap 90R may be connected to one of the rear strapattachments 94 and stretched across the upper portion of the tongue 34and connected to the other rear strap attachment 94. In one example, therear strap 90R may be used in combination with one of the securementassemblies 70 described above, or in lieu of using a securement assembly70 to secure the shoe 100 to the wearer's foot. Additionally oralternatively, the rear strap 90R and/or front strap 90F may be areflective color or material for high visibility, as for example whenwalking at night.

Through the possibility of changing out different strap designs, thestrap 90 can quickly change the look, visibility, and/or fit of thecustomizable shoe 100 at the user's discretion while still retaining theability to return to a strapless design with minimal effort.

It is to be understood that some embodiments of the present inventioninclude one or more of the features that can contribute to the safety,utility, ergonomic, versatility and aesthetics of the system.

NOMENCLATURE

-   -   Shoe shell 30    -   Lower surface 32    -   Tongue 34    -   Shell attachment mechanism 40    -   Clip 42    -   Cross-member 42C    -   Disk 42D    -   Notch 42N    -   Stem 42S    -   Cantilevered panel 44    -   First portion 44F    -   Substantially horizontal panel portion 44H    -   Clips 46    -   Cross-shaped member 46C    -   Notch 46N    -   Stem 46S    -   Structure 48    -   Housing 48H    -   Sole 50    -   Upper surface 52    -   Edge 54    -   Bottom surface 56    -   Hole 56H    -   Sole attachment mechanism 60    -   Slot 62    -   Cavity 62C    -   Substantially horizontal cavity 64    -   Slotted opening 64S    -   Cross-shaped slot 66    -   First sliding block 67    -   Body 67B    -   Head 67H    -   Slot 67S    -   Second sliding block 68    -   Body 68B    -   Head 68H    -   Sole recess 69    -   Sole first opening 69F    -   Sole second opening 69S    -   Securement assembly 70    -   Engagement members 72    -   Stop plate 72P    -   Channel members 74    -   Openings 75    -   Shoelace 75L    -   Elastic bands 76    -   Zipper 77    -   Fabric 77F    -   Detachable loop piece 80    -   Upper loop 81    -   Back heel mechanism 82    -   Elongate body 83    -   Heel strap 84    -   Framework 85    -   Pocket window 86    -   Upper opening 87    -   Removable strap 90    -   Front strap 90F    -   Rear strap 90R    -   End connector 92    -   Strap attachment 94    -   Customizable shoe 100    -   Frontal portion 102    -   Medial region 104    -   Power source 110    -   Wiring 112    -   Actuation device 114    -   Shell seal 120    -   Sole seal 122

The foregoing disclosure and description of the invention areillustrative and explanatory thereof, and various changes in the size,shape and materials, as well as in the details of the illustratedconstruction, may be made without departing from the spirit of theinvention. The present embodiment is, therefore, to be considered asmerely illustrative and not restrictive, the scope of the inventionbeing indicated by the claims rather than the foregoing description, andall changes which come within the meaning and range of equivalence ofthe claims are therefore intended to be embraced therein

While the invention has been described in detail above with reference tospecific embodiments, it will be understood that modifications andalterations in the embodiments disclosed may be made by those practicedin the art without departing from the spirit and scope of the invention.All such modifications and alterations are intended to be covered. Inaddition, all publications cited herein are indicative of the level ofskill in the art and are hereby incorporated by reference in theirentirety as if each had been individually incorporated by reference andfully set forth.

I claim:
 1. A modular, customizable shoe assembly comprising: a shoe shell having a shell attachment mechanism; at least two shoe soles of different types and which can be releasably connected alternatively to the shoe shell, each of the shoe soles having a sole attachment mechanism adapted for releasable connection to the shell attachment mechanism.
 2. The modular, customizable shoe assembly of claim 1, wherein at least one of the shoe soles comprises an upper surface and a raised peripheral lip extending substantially around a periphery of the shoe sole defining a recess in which the shoe shell is received.
 3. The modular, customizable shoe assembly of claim 2, wherein the peripheral lip includes a sole seal; and the shoe shell includes a shell seal, the shell seal arranged and designed to engage the sole seal as the shoe shell is joined to the shoe sole.
 4. The modular, customizable shoe assembly of claim 3, wherein one of the shell seal and sole seal is an elongate recess and the other of the shell seal and the sole seal is an elongate protrusion shaped to be received within the elongate recess.
 5. The modular, customizable shoe assembly of claim 1, wherein the shell attachment mechanism comprises a clip extending from a lower surface of the shoe shell, the clip comprising a stem extending generally perpendicularly from the lower surface and a transverse member transverse to the stem; each of the shoe soles has an upper surface and a bottom surface, and the sole attachment mechanism comprises a slot recessed in the upper surface and opening into an enlarged cavity formed between the upper and bottom surfaces, wherein the transverse member is arranged and designed to extend through the slot and into the enlarged cavity and is partially rotatable within the enlarged cavity to secure the shell attachment mechanism to the sole attachment mechanism.
 6. The modular, customizable shoe assembly of claim 5, wherein the shell attachment mechanism comprises a disk attached to the shoe shell and the stem is at least partially rotatably connected to the disk.
 7. The modular, customizable shoe assembly of claim 5, wherein the shell attachment mechanism further comprises a cantilevered panel extending from the lower surface of the shoe shell; and the sole attachment mechanism further comprises a panel cavity in the shoe sole having a slotted opening in the upper surface, wherein the slotted opening and the panel cavity are arranged and designed to receive the cantilevered panel.
 8. The modular, customizable shoe assembly of claim 5, further comprising: a power source connected to an actuation device, the power source and actuation device mounted in the shoe shell, the power source arranged and designed to power the actuation device to partially rotate the clip.
 9. The modular, customizable shoe assembly of claim 1, wherein the shell attachment mechanism comprises a structure attached to a lower surface of the shoe shell, the structure comprising a housing having first and second openings; and the sole attachment mechanism of each of the at least two shoe soles comprises a sole recess in the shoe sole arranged and designed to receive the housing, the sole recess having first and second openings in a periphery of the shoe sole, and first and second sliding blocks, wherein with the housing received within the sole recess, the housing first opening is aligned with the sole first opening and the housing second opening is aligned with the sole second opening, and the shoe shell is secured to the shoe sole by positioning the first sliding block in the aligned sole and housing first openings and positioning the second sliding block in the aligned sole and housing second openings.
 10. The modular, customizable shoe assembly of claim 9, wherein the first sliding block has a slot extending generally transversely through the first sliding block, and the generally transverse slot is arranged and designed to receive a portion of the second sliding block, wherein the shoe shell is secured to the shoe sole by additionally positioning a portion of the second sliding block in the generally transverse slot.
 11. The modular, customizable shoe assembly of claim 1, further comprising: the shoe shell comprising a pair of engagement members on an upper medial region of the shoe shell; and at least two securement assemblies of different types and which can be releasably connected alternately to the shoe shell, each of the securement assemblies adapted for releasable connection to the pair of engagement members.
 12. The modular, customizable shoe assembly of claim 11, wherein the shoe shell comprises a tongue having first and second sides and the pair of engagement members flank the first and second sides of the tongue; and at least one securement assembly comprises a pair of securement members for slidably engaging the pair of engagement members and securing the securement assembly to the shoe shell.
 13. The modular, customizable shoe assembly of claim 12, wherein each of the securement members have a plurality of openings arranged and designed to receive a shoelace for lacing up the shoe.
 14. The modular, customizable shoe assembly of claim 12, wherein the pair of securement members have at least one piece of stretchable material attached between them to aid in securing the shoe to a wearer's foot.
 15. The modular, customizable shoe assembly of claim 14, further comprising a zipper attached to the at least one piece of stretchable material, wherein the zipper can be partially unzipped to loosen the fit of the shoe on the wearer's foot.
 16. The modular, customizable shoe assembly of claim 1, further comprising: a back heel mechanism on a rear of the shoe shell; and a detachable loop piece having an upper loop and arranged and designed to detachably connect to the back heel mechanism.
 17. The modular, customizable shoe assembly of claim 1, further comprising: a back heel mechanism on a rear of the shoe shell; and a heel strap or elongate body arranged and designed to detachably connect to the back heel mechanism.
 18. The modular, customizable shoe assembly of claim 17, wherein the heel strap or elongate body includes a reflective color or material for high visibility.
 19. The modular, customizable shoe assembly of claim 1, further comprising: a pair of strap attachments attached to left and right side portions of the shoe shell; and a strap having end connectors for releasably connecting to the pair of strap attachments.
 20. The modular, customizable shoe assembly of claim 19, wherein the pair of strap attachments are attached to left and right side rear portions of the shoe shell, and wherein when the strap is connected to the pair of strap attachments the strap is stretched across an upper portion of a tongue of the shoe shell.
 21. A modular, customizable shoe assembly comprising: a shoe shell comprising a shell attachment mechanism; and a pair of engagement members on an upper medial region of the shoe shell; at least two shoe soles of different types and which can be releasably connected alternatively to the shoe shell, each of the shoe soles having a sole attachment mechanism adapted for releasable connection to the shell attachment mechanism; and at least two securement assemblies of different types and which can be releasably connected alternately to the shoe shell, each of the securement assemblies adapted for releasable connection to the pair of engagement members, each of the securement assemblies arranged and designed to aid in securing the shoe to a wearer's foot.
 22. The modular, customizable shoe assembly of claim 21, further comprising: a back heel mechanism on a rear of the shoe shell; and a detachable loop piece having an upper loop and arranged and designed to detachably connect to the back heel mechanism. 